pulidoshorty
21.11.2020 •
Mathematics
4 1/2 x 2 2/3
ANSWER ASA TO BE BRAINLIEST
EXPLAIN HOW AND BE RIGHT
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Ответ:
12
Step-by-step explanation:
You turn the fractions improper, 9/2 x 8/3. Multiply the top numbers and then multiply the bottom. Simplify to get 12.
Ответ:
Explanation:
Before we begin, remember the rule of the difference between squares which is as follows:
a² - b² = (a+b)(a-b)
Now, for the given:
x² - 81 = 0
This can be rewritten as:
x² - (9)² = 0
Applying the rule of the difference between squares, we can factor this expression as follows:
(x-9)(x+9) = 0
This means that:
either x-9 = 0 > x = 9
or x+9 = 0 > x = -9
Hope this helps :)